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Study on the Design Parameters of a Heat Exchange Steam Reformer (HESR) using CFD
Author(s) -
C. Yang,
YULHO LEE,
Sanghyun Park,
Choongmo Yang,
Sungjin Park
Publication year - 2016
Publication title -
journal of hydrogen and new energy
Language(s) - English
Resource type - Journals
eISSN - 2288-7407
pISSN - 1738-7264
DOI - 10.7316/khnes.2016.27.1.001
Subject(s) - pressure drop , computational fluid dynamics , heat exchanger , parametric statistics , heat transfer , materials science , mechanics , engineering , mechanical engineering , statistics , physics , mathematics
>> In this study, CFD model for a Heat Exchange Steam Reformer (HESR) used for a 10kW SOFC system is developed for the design optimization of the HESR. The model is used to explore the effect of design parameters on the performance of the HESR. In the HESR, heat is delivered from the hot gas channel to the fuel channel to supply the heat required for the fuel reforming. In the fuel channel where the fuel is reformed, thermo-fluid dynamics, heat transfer, and chemical reaction are considered to predict the performance of the reformer. The model is validated with experimental data within 2~3% error. The validated model is used for the parametric study of the HESR design. Channel length, channel diameter, and flow direction are selected as the design parameters. The effects of the HESR design parameters on the outlet temperature, outlet H2 mole fraction, and pressure drop across the reformer are presented using the model.

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